* [msbuild] Remove unnecessary duplicate implementation of Move
Our implementation of the Move task was a partial copy of what
the MSBuild Move task does: https://github.com/Microsoft/msbuild/blob/master/src/XMakeTasks/Move.cs
Remove the unnecessary code, make it inherit the base implementation
like we do for the other MSBuild-overriden tasks, and place it in a
corresponding MsBuildTasks folder to denote this (again, like we do
in iOS.Tasks).
Removing this (unnecessary IMO) custom implementation of Move
ensures that when we switch to MSBuild, we can leverage improvements
and fixes on the task automatically.
* [msbuild] Move all the common MSBuild overriden tasks to MacDev
These tasks previously existed in iOS.Tasks, and Mac.Tasks. Since
they are reused across iOS and XM targets, move them to the common
MacDev project and update the targets accordingly.
Jeffrey Stedfast
Daniel Cazzulino